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Limitations

The NDFS-II has been developed to be a data transport medium that operates within a local area network only. It takes advantage of the gigabyte networks. Performance has always been a top-priority during the design and development of the system. Gathering data from sensors spread geographically was never a requirement. Therefore, the system does not work for applications having parts running on different networks such as the Internet. A data flow server must be on the same subnet to join an application domain because servers use a multicast request to discover each other. This request cannot go through routers, so the NDFS-II is limited to LAN networks.

Operating systems offers different capabilities. When choosing which one to use, several parameters must be weighed, including but not limited to:

  • Operating systems capabilities

  • Hardware support

  • Third-party library support

Users can have constraints, which limit them to a particular operating system. We believe it is our role to adapt to them by providing a cross-platform middleware.

We noticed some limitations while developing multimodal application using the NDFS-II. For example, Linux appears to be the operating system having the best network throughput. We also learned that Windows XP can only handle up to 128 network connections.

Created on 2008-06-18 by Antoine Fillinger - Last updated on 2008-11-23 by Antoine Fillinger